i have the nikon D60 and i think it's fabulous. i also have two lenses, 18-50mm and 50-200mm. it's my first DSLR so i don't really know about what's different about each model, it was affordable to
us and i wanted something 'big' which could change lenses. i like that it has a viewfinder as well as the LCD display. i need to learn more about using it, though!
i think that most of these cameras have rechargeable batteries, which they need (i think you'd be going through AAA's too quickly to make it worth it) but i did misplace the charger once and that was a PITA!! i would recommend getting a second battery and having it charged all the time! (note to self: get second battery)